Remove blemishes and scrub potatoes. Slice them into quarters and place in a large sauce pan. Add water to pan until potatoes are covered.

Bring to a boil. Reduce heat, cover and continue cooking 20 minutes, or until potatoes are tender. Remove from heat, drain and peel off skins.

Place potatoes in a large bowl. Add butter and beat with an electric mixer. Gradually add the milk and garlic juice. Beat potatoes until they reach desired consistency, adding milk, if needed. Season with salt and pepper to taste.